Land and water use survey in Kordofan Province of the Republic of the Sudan - Programme of agronomic activities for 1964.

agricultura agriculture agronomia agronomie agronomy agua del suelo ciencia del suelo conservation de l'eau contenido de agua en el suelo crop rotation densidad density eau du sol ecologia ecologie ecology erosion fertilidad del suelo gestion du sol manejo del suelo methode methods pastizales pastures plant population projet de recherche research projects rotation culturale sciences du sol soil fertility soil management soil sciences soil water soil water content teneur en eau du sol trial methods variedades varieties water conservation